Improved mode of coating wrought iron with oast steel



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JOSIA H W --E-';LLs-,' 0 F ri'rr-sisnne, PENNSYLVANIA.

' I Letters Patent No; 69;904, dated October 15, 1867.

IMPROVED MODE 0F COATING WROUGHT IRON WITH GAST STEEL.

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TO ALL WHOM IT MAY CONCERN:

Be it known that I, JOSIAH W. ELLS, of the city of Pittsburg, in thecounty of Allegheny, and State of Pennsylvania, have invented a new anduseful article of manufacture, to wit, slabs, sheets, plates, bars, androds of wrought iron, having 'auniform coating, face, or surface of caststeel; and I hereby declare that the following is a full, clear, andexact description of the method or manner of making the some.

I take a bloom or short, thick bar of wrought iron, previously broughtto a welding heat, and while in that condition placeit in aproperly-constructed flask or mould, sufficiently large to leave asmall. space between the two. Into this space I pour molten steel, whichefi'eets a perfect union ,with the hot iron. As soon as the steel isset, or becomes sufliciently cool to bear removal from the mould, Ifashion the compound ingot so made into slabs, sheets, plates, bars, androds by the operation known as rolling.

The operation or application of this-principle, by changing the positionof the bloom in the mould, enables me to place or put the cast-steelcoating or surface on any one or more, or on all sides of the slabs,sheets, plates, bars, and rods of wrought iron' as maybe desired, and ofany required degree of thickness, thus adapting the slabs, sheets,plates, bars, and rods so formed to any and all uses to which it may bedesired to apply them. w

By this means or process I am enabled to make slabs, sheets, plates,bars, and rods of iron and steel combined, having a very hard uniformwearing surface of steel united to a tough interior or b ack of wroughtiron, and applicable to the"manufacture of various things useful in thearts, and which may be cutinto any shape, andhardened or temperedwithout danger of cracking or warping the steel surface.

Having thus briefly described my invention, I claim as a new andmerchautable article of manufacture Slabs, sheets, plates, bars, androds of wrought iron having a uniform coating, face, or surface of caststeel, applied, as hereinbefore set forth, on any one or more, or on allsides of the same, and of any required degree of thickness.

JOSIAH W. ELLS.

Witnesses: I

EB- WILLIAMs, Jr., H NBY B. WILLIAMS.

